我有如下Oracle查询语句
select * from(
select......
from ......
)where......我想把上面的查询语句写成procedure的形式,可以直接这样写吗?:CREATE OR REPLACE PROCEDURE RPT_Maintenance_Cyl_MG(
O_REFCURSOR OUT Pkg_Report.RCURSOR)
IS
sql_stmt varchar2 (3000);
BEGIN
sql_stmt := ' --************************************查询语句
select * from(
select......
from ......
)where......
--***********************************查询语句';
OPEN O_REFCURSOR FOR sql_stmt;
END RPT_Maintenance_Cyl_MG;
/
我不需要写两个存储过程,其中一个调用另外一个?请多多指教!谢谢!
select * from(
select......
from ......
)where......我想把上面的查询语句写成procedure的形式,可以直接这样写吗?:CREATE OR REPLACE PROCEDURE RPT_Maintenance_Cyl_MG(
O_REFCURSOR OUT Pkg_Report.RCURSOR)
IS
sql_stmt varchar2 (3000);
BEGIN
sql_stmt := ' --************************************查询语句
select * from(
select......
from ......
)where......
--***********************************查询语句';
OPEN O_REFCURSOR FOR sql_stmt;
END RPT_Maintenance_Cyl_MG;
/
我不需要写两个存储过程,其中一个调用另外一个?请多多指教!谢谢!
解决方案 »
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- 求SQL插入触发器语句
GO
IF OBJECT_ID ( 'Production.usp_GetList', 'P' ) IS NOT NULL
DROP PROCEDURE Production.usp_GetList;
GO
CREATE PROCEDURE Production.usp_GetList @product varchar(40)
, @maxprice money
, @compareprice money OUTPUT
, @listprice money OUT
AS
SELECT p.name AS Product, p.ListPrice AS 'List Price'
FROM Production.Product p
JOIN Production.ProductSubcategory s
ON p.ProductSubcategoryID = s.ProductSubcategoryID
WHERE s.name LIKE @product AND p.ListPrice < @maxprice;
-- Populate the output variable @listprice.
SET @listprice = (SELECT MAX(p.ListPrice)
FROM Production.Product p
JOIN Production.ProductSubcategory s
ON p.ProductSubcategoryID = s.ProductSubcategoryID
WHERE s.name LIKE @product AND p.ListPrice < @maxprice);
-- Populate the output variable @compareprice.
SET @compareprice = @maxprice;
GO
另一个存储过程调用的时候:Create Proc Test
as
DECLARE @compareprice money, @cost money
EXECUTE Production.usp_GetList '%Bikes%', 700,
@compareprice OUT,
@cost OUTPUT
IF @cost <= @compareprice
BEGIN
PRINT 'These products can be purchased for less than
$'+RTRIM(CAST(@compareprice AS varchar(20)))+'.'
END
ELSE
PRINT 'The prices for all products in this category exceed
$'+ RTRIM(CAST(@compareprice AS varchar(20)))+'.'
第二种方法:创建一个临时表create proc GetUserName
as
begin
select 'UserName'
endCreate table #tempTable (userName nvarchar(50))
insert into #tempTable(userName)
exec GetUserNameselect #tempTable--用完之后要把临时表清空
drop table #tempTable--需要注意的是,这种方法不能嵌套。例如: procedure a
begin
...
insert #table exec b
end
procedure b
begin
...
insert #table exec c
select * from #table
end
procedure c
begin
...
select * from sometable
end --这里a调b的结果集,而b中也有这样的应用b调了c的结果集,这是不允许的,
--会报“INSERT EXEC 语句不能嵌套”错误。在实际应用中要避免这类应用的发生。
第三种方法:声明一个变量,用exec(@sql)执行:1);EXEC 执行SQL语句declare @rsql varchar(250)
declare @csql varchar(300)
declare @rc nvarchar(500)
declare @cstucount int
declare @ccount int
set @rsql='(select Classroom_id from EA_RoomTime where zc='+@zc+' and xq='+@xq+' and T'+@time+'=''否'') and ClassroomType=''1'''
--exec(@rsql)
set @csql='select @a=sum(teststucount),@b=sum(classcount) from EA_ClassRoom where classroom_id in '
set @rc=@csql+@rsql
exec sp_executesql @rc,N'@a int output,@b int output',@cstucount output,@ccount output--将exec的结果放入变量中的做法
--select @csql+@rsql
--select @cstucount本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/fredrickhu/archive/2009/09/23/4584118.aspx